In the end it is shown that when Val Kilmer is driving the car, sunlight is reflected on the widshield and forms a sort of a halo. I think it was a pretty good way to end the movie, since throughout the movie Val Kilmer's aliases are names of saints, don't you think?
I think it was more to represent his charitable donations (i.e. you hear on the radio that 3 billion has been donated to the red cross and other charities) which alludes to him giving away the fortune he got his hands on. it's been a while since I've seen this, so I could be wrong.
The charity donation fund is being donated to Shue's Emma Russell's fund if u have watched and listened carefully.
But I don't think that a cute cartoon/anime Halo can help Saint to be liked by girls. unless the people who watch this films is already indulged in make love, then yes, they will love saint.
I repeat, only those who indulged in frequent intercourses will love this rubbish film.
HAhahaha! I love what you wrote. Thank you! I so needed a good laugh today. "Already indulged in make love" and "indulged in frequent intercourses" Bwahaha!